The HR-A Series of Compact Analytical Balances are fast, accurate and reliable. They feature solid construction based on the A&D Super Hybrid Sensor (SHS) technology which has delivered consistent weighing results day-in and day-out in thousands of laboratories and production facilities worldwide.

The HR-AZ models add highly reliable internal calibration. One-touch automatic calibration ensures consistent balance accuracy.

The HR-A and HR-AZ meet today’s demanding needs in:

  • Laboratory
  • Quality Control / QA
  • Production

environments and deliver performance with convenience in a compact footprint.

Special Features:

  • Removable, shatterproof breeze break with antistatic coating
  • Compact footprint: 20x30cm / 8x12in.
  • GLP/GCP/LIMS/ISO Compliant
  • 14 weighing units and functions: g, mg, oz, ozt, ct, dwt, GN, mom, tael, tola, %, pieces,density, statstical function and user-defined units.
  • Automatic internal calibration
  • Underhook weighing
  • Clear, reverse-backlit LCD
Specifications:
A&D – HR-250AZ
Capacity252g
Readability0.1mg
Pan SizeØ 90mm / 3.54″
Minimum weighing value0.1 mg
Repeatability (Standard Deviation)0 to 200 g: 0.1 mg / 200 to 252 g: 0.2 mg
Linearity±0.3 mg
Stabilization time (when set to FAST under good environment conditions)Approx. 2 seconds (factory setting is MID, whose stabilization time is approx. 3 seconds)
Sensitivity drift±2 ppm/°C (10 to 30 °C/50 to 86 °F)
CalibrationInternal
Clock and calendar functionYes
Operating environment5 to 40 °C (41 to 104 °F), 85% RH or less (no condensation)
Display refresh rate5 times/second or 10 times/second, selectable
Display mode (units of measure)g, mg, oz, oz-t, ct, momme, dwt, grain, tael, tola, pieces (counting mode), % (percent mode), DS (density mode), user definable functions
Capacity vs readability (Other units of measure)3.59 oz x 0.00001 oz
3.27 ozt x 0.00001 ozt
510 ct x 0.001 ct
65.5 dwt x 0.0001 dwt
27.2 mom x 0.0001 mom
1574 GN x 0.002 GN
Counting modeMinimum unit mass: 0.1 mg
Number of samples: 10, 25, 50, or 100 pieces
Percent modeMinimum 100% reference mass: 10.0 mg
Minimum 100% display: 0.01%, 0.1%, or 1% (depends on the reference mass stored)
InterfaceRS-232C standard (see also options below)
Applicable calibration weight values (g)250, 200, 100, 50
External dimensions198 (W) × 294 (D) × 315 (H) mm / 8 (W) × 12 (D) × 12.4 (H) in
Net weight3.5 kg / 7.8 lbs
Power supplyAC adapter
Power consumptionApprox. 11 VA (supplied by the AC adapter)